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  <div class="section" id="interface-link-libraries">
<span id="prop_tgt:INTERFACE_LINK_LIBRARIES"></span><h1>INTERFACE_LINK_LIBRARIES<a class="headerlink" href="#interface-link-libraries" title="Permalink to this headline">¶</a></h1>
<p>List public interface libraries for a library.</p>
<p>This property contains the list of transitive link dependencies.  When
the target is linked into another target using the
<span class="target" id="index-0-command:target_link_libraries"></span><a class="reference internal" href="../command/target_link_libraries.html#command:target_link_libraries" title="target_link_libraries"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">target_link_libraries()</span></code></a> command, the libraries listed (and
recursively their link interface libraries) will be provided to the
other target also.  This property is overridden by the
<span class="target" id="index-0-prop_tgt:LINK_INTERFACE_LIBRARIES"></span><a class="reference internal" href="LINK_INTERFACE_LIBRARIES.html#prop_tgt:LINK_INTERFACE_LIBRARIES" title="LINK_INTERFACE_LIBRARIES"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">LINK_INTERFACE_LIBRARIES</span></code></a> or
<span class="target" id="index-0-prop_tgt:LINK_INTERFACE_LIBRARIES_&lt;CONFIG&gt;"></span><a class="reference internal" href="LINK_INTERFACE_LIBRARIES_CONFIG.html#prop_tgt:LINK_INTERFACE_LIBRARIES_&lt;CONFIG&gt;" title="LINK_INTERFACE_LIBRARIES_&lt;CONFIG&gt;"><code class="xref cmake cmake-prop_tgt docutils literal notranslate"><span class="pre">LINK_INTERFACE_LIBRARIES_&lt;CONFIG&gt;</span></code></a> property if policy
<span class="target" id="index-0-policy:CMP0022"></span><a class="reference internal" href="../policy/CMP0022.html#policy:CMP0022" title="CMP0022"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0022</span></code></a> is <code class="docutils literal notranslate"><span class="pre">OLD</span></code> or unset.</p>
<p>Contents of <code class="docutils literal notranslate"><span class="pre">INTERFACE_LINK_LIBRARIES</span></code> may use “generator expressions”
with the syntax <code class="docutils literal notranslate"><span class="pre">$&lt;...&gt;</span></code>.  See the <span class="target" id="index-0-manual:cmake-generator-expressions(7)"></span><a class="reference internal" href="../manual/cmake-generator-expressions.7.html#manual:cmake-generator-expressions(7)" title="cmake-generator-expressions(7)"><code class="xref cmake cmake-manual docutils literal notranslate"><span class="pre">cmake-generator-expressions(7)</span></code></a>
manual for available expressions.  See the <span class="target" id="index-0-manual:cmake-buildsystem(7)"></span><a class="reference internal" href="../manual/cmake-buildsystem.7.html#manual:cmake-buildsystem(7)" title="cmake-buildsystem(7)"><code class="xref cmake cmake-manual docutils literal notranslate"><span class="pre">cmake-buildsystem(7)</span></code></a>
manual for more on defining buildsystem properties.</p>
<div class="admonition note">
<p class="admonition-title">Note</p>
<p>A call to <span class="target" id="index-1-command:target_link_libraries"></span><a class="reference internal" href="../command/target_link_libraries.html#command:target_link_libraries" title="target_link_libraries"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">target_link_libraries(&lt;target&gt;</span> <span class="pre">...)</span></code></a> may update this
property on <code class="docutils literal notranslate"><span class="pre">&lt;target&gt;</span></code>.  If <code class="docutils literal notranslate"><span class="pre">&lt;target&gt;</span></code> was not created in the same
directory as the call then <span class="target" id="index-2-command:target_link_libraries"></span><a class="reference internal" href="../command/target_link_libraries.html#command:target_link_libraries" title="target_link_libraries"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">target_link_libraries()</span></code></a> will add a
suffix of the form <code class="docutils literal notranslate"><span class="pre">::&#64;&lt;directory-id&gt;</span></code> to each entry, where the
<code class="docutils literal notranslate"><span class="pre">::&#64;</span></code> is a separator and the <code class="docutils literal notranslate"><span class="pre">&lt;directory-id&gt;</span></code> is unspecified.
This tells the generators that the named libraries must be looked up in
the scope of the caller rather than in the scope in which the
<code class="docutils literal notranslate"><span class="pre">&lt;target&gt;</span></code> was created.  Valid directory ids are stripped on export
by the <span class="target" id="index-0-command:install"></span><a class="reference internal" href="../command/install.html#command:install" title="install"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">install(EXPORT)</span></code></a> and <span class="target" id="index-0-command:export"></span><a class="reference internal" href="../command/export.html#command:export" title="export"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">export()</span></code></a> commands.</p>
</div>
<div class="section" id="creating-relocatable-packages">
<h2>Creating Relocatable Packages<a class="headerlink" href="#creating-relocatable-packages" title="Permalink to this headline">¶</a></h2>
<p>Note that it is not advisable to populate the
<code class="docutils literal notranslate"><span class="pre">INTERFACE_LINK_LIBRARIES</span></code> of a target with absolute paths to dependencies.
That would hard-code into installed packages the library file paths
for dependencies <strong>as found on the machine the package was made on</strong>.</p>
<p>See the <a class="reference internal" href="../manual/cmake-packages.7.html#creating-relocatable-packages"><span class="std std-ref">Creating Relocatable Packages</span></a> section of the
<span class="target" id="index-0-manual:cmake-packages(7)"></span><a class="reference internal" href="../manual/cmake-packages.7.html#manual:cmake-packages(7)" title="cmake-packages(7)"><code class="xref cmake cmake-manual docutils literal notranslate"><span class="pre">cmake-packages(7)</span></code></a> manual for discussion of additional care
that must be taken when specifying usage requirements while creating
packages for redistribution.</p>
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